GOOD Morning America host George Stephanopoulos' wife, Ali Wentworth, has made a shocking confession about their new documentary, Pretty Baby.

The couple has been collaborating on the documentary, which is about actress Brooke Shields, with their new production company.

Ali Wentworth and George Stephanopoulos have been working on the Pretty Baby documentary

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Ali Wentworth and George Stephanopoulos have been working on the Pretty Baby documentaryCredit: Rex Features
The documentary follows the life of Brooke Shields

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The documentary follows the life of Brooke ShieldsCredit: Getty Images - Getty

On a recent episode of The Stern Show, Wentworth shared an "incredible" story from Pretty Baby that had not made it into the final doc.

Wentworth recalled when Shields was dating Dodi Fayed and the two were in a car in Paris.

The couple was "going through that tunnel being chased by paparazzi, you know, 10 years before Lady Di," Wentworth said.

"To me, that is like, 'Oh my god what an ominous, weird moment'," she continued.

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Wentworth said Shields told her the story when the two women were walking around Paris together.

"I need to have a camera on you twenty-four-seven," she recalled saying to Shields.

George and Ali recently hit the red carpet for the Pretty Baby premiere.

The duo spent their evening at Alice Tully Hall in New York City for the premiere of Pretty Baby: Brooke Shields, which follows the life of the eponymous actress and model.

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George posed with his arm around his wife's waist.

The Good Morning America journalist smiled happily in a slick black suit, paired with a lavender-hued shirt and a silky purple tie.

Ali, meanwhile, clutching her husband's hand, displayed a plunging black suit without a blouse, and her wavy blonde hair cascaded around her shoulders.

"This has been a great passion," George said of the project during an episode of GMA in January.

He explained: "Ali brought it about a year and a half ago and she's friends with Brooke."

The documentary is the production of BedBy8, the company George shares with Ali.